Match List-I with List-II.
| List-I (Compound) | List-II (Use) |
|---|---|
| (A) Methanoic acid | (I) As a food preservative |
| (B) Ethanoic acid | (II) In rubber, textile, dyeing, leather and electroplating industries |
| (C) Sodium benzoate | (III) In perfumery |
| (D) Esters of benzoic acid | (IV) As a solvent |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → A-II, B-IV, C-I, D-III
The two lower acids have different industrial uses, and the two derivatives of benzoic acid are used in different ways: the salt keeps food from spoiling, while the esters have pleasant smells.
(A) Methanoic acid — This matches (II) In rubber, textile, dyeing, leather and electroplating industries. Methanoic acid (formic acid, \( \ce{HCOOH} \)) is used in these industries.
(B) Ethanoic acid — This matches (IV) As a solvent. Ethanoic acid (acetic acid, \( \ce{CH3COOH} \)) is used as a solvent and, as vinegar, in the food industry.
(C) Sodium benzoate — This matches (I) As a food preservative. The sodium salt of benzoic acid, \( \ce{C6H5COONa} \), is added to food to preserve it.
(D) Esters of benzoic acid — This matches (III) In perfumery. These esters have pleasant odours and are used in perfumes.
NCERT (2026-27 edition):
8.10 Uses of Carboxylic Acids – “Methanoic acid is used in rubber, textile, dyeing, leather and electroplating industries. Ethanoic acid is used as solvent and as vinegar in food industry. … Esters of benzoic acid are used in perfumery. Sodium benzoate is used as a food preservative. …”